Finding the Fourth Proportional to 402,294,403.70, 603,441,605.55 and 198,221,059.70
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Solution
The fourth proportional to 402,294,403.70, 603,441,605.55 and 198,221,059.70 is: 297,331,589.55
Step by Step Solution
- Step 1: Write the proportion equation
402,294,403.70 : 603,441,605.55 = 198,221,059.70 : x - Step 2: Convert to fraction form
402,294,403.70/603,441,605.55 = 198,221,059.70/x - Step 3: Cross multiply
402,294,403.70x = 603,441,605.55 × 198,221,059.70 - Step 4: Simplify right side
402,294,403.70x = 119,614,834,519,190,384 - Step 5: Solve for x
x = 119,614,834,519,190,384/402,294,403.70 - Step 6: Final answer
x = 297,331,589.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.